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Journal articles on the topic 'Bio-Sourced materials'

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Author: Grafiati

Published: 7 July 2024

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1

Elbaz, Abdelrahman, Zhenzhu He, Bingbing Gao, Junjie Chi, Enben Su, Dagan Zhang, Songqin Liu, Hua Xu, Hong Liu, and Zhongze Gu. "Recent biomedical applications of bio-sourced materials." Bio-Design and Manufacturing 1, no. 1 (February 26, 2018): 26–44. http://dx.doi.org/10.1007/s42242-018-0002-5.

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2

Ehsani, Masoume, Denis Kalugin, Huu Doan, Ali Lohi, and Amira Abdelrasoul. "Bio-Sourced and Biodegradable Membranes." Applied Sciences 12, no. 24 (December 14, 2022): 12837. http://dx.doi.org/10.3390/app122412837.

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Biodegradable membranes with innovative antifouling properties are emerging as possible substitutes for conventional membranes. These types of membranes have the potential to be applied in a wide range of applications, from water treatment to food packaging and energy production. Nevertheless, there are several existing challenges and limitations associated with the use of biodegradable membranes in large scale applications, and further studies are required to determine the degradation mechanisms and their scalability. Biodegradable membranes can be produced from either renewable natural resources or synthesized from low-molecular monomers that increase the number of possible structures and, as a result, greatly expand the membrane application possibilities. This study focused on bio-sourced and synthesized biodegradable polymers as green membrane materials. Moreover, the article highlighted the excellent antifouling properties of biodegradable membranes that assist in improving membrane lifetime during filtration processes, preventing chemical/biological disposal due to frequent cleaning processes and ultimately reducing the maintenance cost. The industrial and biomedical applications of biodegradable membranes were also summarized, along with their limitations. Finally, an overview of challenges and future trends regarding the use of biodegradable membranes in various industries was thoroughly analyzed.

3

Gouda, Abdelaziz, Manuel Reali, and Clara Santato. "Bio-Sourced, Potentially Biodegradable Materials for Fast Response Moisture Sensors." ECS Meeting Abstracts MA2020-01, no. 35 (May 1, 2020): 2425. http://dx.doi.org/10.1149/ma2020-01352425mtgabs.

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4

Ba, Labouda, Ikram El Abbassi, Cheikh Sidi Ethmane Kane, A. Moumen Darcherif, and Mamoudou Ndongo. "The Challenges of Local and Bio-Sourced Materials on Thermal Performance: Review, Classification and Opportunity." International Journal of Engineering Research in Africa 47 (March 2020): 85–101. http://dx.doi.org/10.4028/www.scientific.net/jera.47.85.

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This paper reviews local and bio-sourced materials for construction through their thermomechanical characteristics, but with an emphasis on their thermal conductivity that allows us to assess the thermal performance (insulation) of these materials. Then, we discuss the energy problems in Mauritania, while highlighting the local and bio-sourced materials existing in this country. These materials could be an alternative to solve these energy problems. Finally, we focus on the thermal performance of Typha Australis, a plant that grows abundantly in fresh water mainly in Senegal and Mauritania, which would have good advantages over the thermal performance of the building.

5

Ranefjärd, Oskar, Paulien B. Strandberg-de Bruijn, and Lars Wadsö. "Hygrothermal Properties and Performance of Bio-Based Insulation Materials Locally Sourced in Sweden." Materials 17, no. 9 (April 26, 2024): 2021. http://dx.doi.org/10.3390/ma17092021.

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In recent years, there has been a paradigm shift in the building sector towards more sustainable, resource efficient, and renewable materials. Bio-based insulation derived from renewable resources, such as plant or animal fibres, is one promising group of such materials. Compared to mineral wool and polystyrene-based insulation materials, these bio-based insulation materials generally have a slightly higher thermal conductivity, and they are significantly more hygroscopic, two factors that need to be considered when using these bio-based insulation materials. This study assesses the hygrothermal properties of three bio-based insulation materials: eelgrass, grass, and wood fibre. All three have the potential to be locally sourced in Sweden. Mineral wool (stone wool) was used as a reference material. Hygrothermal material properties were measured with dynamic vapour sorption (DVS), transient plane source (TPS), and sorption calorimetry. Moisture buffering of the insulation materials was assessed, and their thermal insulation capacity was tested on a building component level in a hot box that exposed the materials to a steady-state climate, simulating in-use conditions in, e.g., an external wall. The tested bio-based insulation materials have significantly different sorption properties to stone wool and have higher thermal conductivity than what the manufacturers declared. The hot-box experiments showed that the insulating capacity of the bio-based insulators cannot be reliably calculated from the measured thermal conductivity alone. The results of this study could be used as input data for numerical simulations and analyses of the thermal and hygroscopic behaviour of these bio-based insulation materials.

6

Sid, Saurabh, Rahul S. Mor, Anand Kishore, and Vijay Singh Sharanagat. "Bio-sourced polymers as alternatives to conventional food packaging materials: A review." Trends in Food Science & Technology 115 (September 2021): 87–104. http://dx.doi.org/10.1016/j.tifs.2021.06.026.

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7

Zhang, Qianmin, Xiaojuan Wei, Yongli Ji, Li Yin, Zaizai Dong, Feng Chen, Mingqiang Zhong, Jian Shen, Zhenjie Liu, and Lingqian Chang. "Adjustable and ultrafast light-cured hyaluronic acid hydrogel: promoting biocompatibility and cell growth." Journal of Materials Chemistry B 8, no. 25 (2020): 5441–50. http://dx.doi.org/10.1039/c9tb02796c.

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8

Grignard, B., J. M. Thomassin, S. Gennen, L. Poussard, L. Bonnaud, J. M. Raquez, P. Dubois, et al. "CO2-blown microcellular non-isocyanate polyurethane (NIPU) foams: from bio- and CO2-sourced monomers to potentially thermal insulating materials." Green Chemistry 18, no. 7 (2016): 2206–15. http://dx.doi.org/10.1039/c5gc02723c.

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9

Mgaya, James, Ginena B. Shombe, Siphamandla C. Masikane, Sixberth Mlowe, Egid B. Mubofu, and Neerish Revaprasadu. "Cashew nut shell: a potential bio-resource for the production of bio-sourced chemicals, materials and fuels." Green Chemistry 21, no. 6 (2019): 1186–201. http://dx.doi.org/10.1039/c8gc02972e.

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10

Le Barbenchon, Louise, and Philippe Viot. "From bio-sourced to bio-inspired cellular materials: A review on their mechanical behavior under dynamic loadings." Materials Letters 355 (January 2024): 135487. http://dx.doi.org/10.1016/j.matlet.2023.135487.

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11

Moussa, Tala, Chadi Maalouf, Christophe Bliard, Boussad Abbes, Céline Badouard, Mohammed Lachi, Silvana do Socorro Veloso Sodré, et al. "Spent Coffee Grounds as Building Material for Non-Load-Bearing Structures." Materials 15, no. 5 (February 24, 2022): 1689. http://dx.doi.org/10.3390/ma15051689.

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The gradual development of government policies for ecological transition in the modern construction sector leads researchers to explore new alternative and low environmental impact materials with a particular focus on bio-sourced materials. In this perspective, the mechanical, thermal insulation, and the sound absorption performances of a spent coffee grounds/potato starch bio-based composite were analyzed for potential application in buildings. Based on thermal conductivity and diffusivity tests, the coffee grounds waste biocomposite was characterized as an insulating material comparable with conventional thermal insulation materials of plant origin. Acoustical tests revealed absorption coefficients in the same range as other conventional materials used in building acoustical comfort. This bio-sourced material presented a sufficient compressive mechanical behavior for non-load-bearing structures and a sufficient mechanical capacity to be shaped into building bricks. Mechanical, thermal, and acoustic performances depend on the moisture environment. The groundwork was laid for an initial reflection on how this composite would behave in two opposite climates: the continental climate of Reims in France and the tropical climate of Belém in Brazil.

12

Camus, Anthony, Manuel Reali, and Clara Santato. "Advances in high-resolution printed transistors: The case of bio-sourced organic materials." Current Opinion in Green and Sustainable Chemistry 34 (April 2022): 100594. http://dx.doi.org/10.1016/j.cogsc.2022.100594.

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13

Aghahadi, Mohammad, Essolé Padayodi, Saïd Abboudi, and S. Amir Bahrani. "Physical modeling of heat and moisture transfer in wet bio-sourced insulating materials." Review of Scientific Instruments 89, no. 10 (October 2018): 104902. http://dx.doi.org/10.1063/1.5047049.

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14

Liu, Dagang, Ying Zhang, Xun Sun, and Peter R. Chang. "Recent advances in bio-sourced polymeric carbohydrate/nanotube composites." Journal of Applied Polymer Science 131, no. 12 (January 21, 2014): n/a. http://dx.doi.org/10.1002/app.40359.

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15

ARHAB, FATMA, BOUALEM DJEBRI, HEMZA SAIDI, BASSAM GAMAL NASSER MUTHANNA, and ABDELKADER MEBROUKI. "ELABORATION OF THERMAL INSULATION COMPOSITES BASED ON PAPER WASTE AND BIO-SOURCED MATERIAL." Cellulose Chemistry and Technology 58, no. 1-2 (March 15, 2024): 153–61. http://dx.doi.org/10.35812/cellulosechemtechnol.2024.58.15.

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It is well-known that energy consumption is increasing around the world on a daily basis. In the construction sector, a highly effective solution for reducing energy consumption involves exploring both modern and traditional buildings designed to adapt to climate changes. One promising approach is to use paper waste and bio-sourced materials as the basis for insulation. The purpose of this study was to improve the sustainability of buildings by using recycled waste materials that have a positive impact on the environment, people, and the economy. A novel insulating material composed of recycled paper waste and Ampelodesmos mauritanicus leaves and fibers was developed and used in non-load-bearing elements. The paper waste was transformed into pulp and mixed with the bio-sourced materials to create a composite material that exhibits excellent insulation properties. The resulting material is lightweight, durable, and cost-effective. Furthermore, different mechanical and thermal analyses were performed on specimens with varying dosage ratios. The results showed that the developed material has good thermal insulation, with a value of 0.027 W/m.K.

16

Arinkoola, A. O,, K. K. Salam, T. O. Salawudeen, G. O. Abidemi, J. O. Hamed, M. O. Jimoh, O. A. Olufayo, and Y. M. Aladeitan. "Improvement of Filtration Properties of Treated Nigerian Bentonitic Clay Using Locally Sourced Bio-Materials." LAUTECH Journal of Civil and Environmental Studies 5, no. 1 (September 27, 2020): 114–30. http://dx.doi.org/10.36108/laujoces/0202/50(0121).

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Exploitation of Nigerian bentonitic clay deposit will offer economic advantage in terms of utilization for drilling purpose and prevent money spent on importation. Clay used for this analysis was beneficiated using sodium Carbonate (Na2CO3) and the change in the elemental composition of the raw clay sample and treated clay with was estimated using X-ray fluorescence spectroscopy (XRF). The treated clay and locally sourced bio-materials were added to the formulation of drilling fluid using Reduced Central Composite Design (RCCD). The fluid loss and cake thickness of prepared drilling fluid were determined using filter loss test kit. The result of the investigation show that the maximum recorded fluid loss was 14.4 ml/30mins at 100 psi while cake thickness values improved with addition of the bio-materials to the drilling fluid formulation when compared with the standard values.

17

Ouagne, Pierre. "3rd Edition of the Young Researchers' Days in Bio-sourced Composites." Revue des composites et des matériaux avancés 29, no. 5 (November 1, 2019): 275–76. http://dx.doi.org/10.18280/rcma.290500.

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18

Ravotti, Rebecca, Oliver Fellmann, Nicolas Lardon, Ludger Fischer, Anastasia Stamatiou, and Jörg Worlitschek. "Investigation of Lactones as Innovative Bio-Sourced Phase Change Materials for Latent Heat Storage." Molecules 24, no. 7 (April 3, 2019): 1300. http://dx.doi.org/10.3390/molecules24071300.

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In the presented work, five bio-based and bio-degradable cyclic esters, i.e. lactones, have been investigated as possible phase change materials for applications in latent heat storage systems. Commercial natural lactones such as ε-caprolactone and γ-valerolactone were easily purchased through chemical suppliers, while 1,2-campholide, oxa-adamantanone and dibenzochromen-6-one were synthesized through Baeyer-Villiger oxidation. The compounds were characterized with respect to attenuated total reflectance spectroscopy and gas chromatography coupled with mass spectroscopy, in order to confirm their chemical structures and identity. Subsequently, thermogravimetric analysis and differential scanning calorimetry were used to measure the phase change temperatures, enthalpies of fusion, degradation temperatures, as well to estimate the degree of supercooling. The lactones showed a wide range of phase change temperatures from −40 °C to 290 °C, making them a high interest for both low and high temperature latent heat storage applications, given the lack of organic phase change materials covering phase change temperature ranges below 0 °C and above 80 °C. However, low enthalpies of fusion, high degrees of supercooling and thermal degradations at low temperatures were registered for all samples, rendering them unsuitable as phase change materials.

19

Chikhi, Mourad. "Young’s modulus and thermophysical performances of bio-sourced materials based on date palm fibers." Energy and Buildings 129 (October 2016): 589–97. http://dx.doi.org/10.1016/j.enbuild.2016.08.034.

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20

Calvino, Céline, Nicholas Macke, Ryo Kato, and Stuart J. Rowan. "Development, processing and applications of bio-sourced cellulose nanocrystal composites." Progress in Polymer Science 103 (April 2020): 101221. http://dx.doi.org/10.1016/j.progpolymsci.2020.101221.

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21

Blanco, Ignazio, and Valentina Siracusa. "The Use of Thermal Techniques in the Characterization of Bio-Sourced Polymers." Materials 14, no. 7 (March 30, 2021): 1686. http://dx.doi.org/10.3390/ma14071686.

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The public pressure about the problems derived from the environmental issues increasingly pushes the research areas, of both industrial and academic sectors, to design material architectures with more and more foundations and reinforcements derived from renewable sources. In these efforts, researchers make extensive and profound use of thermal analysis. Among the different techniques available, thermal analysis offers, in addition to high accuracy in the measurement, smartness of execution, allowing to obtain with a very limited quantity of material precious information regarding the property–structure correlation, essential not only in the production process, but overall, in the design one. Thus, techniques such as differential scanning calorimetry (DSC), differential thermal analysis (DTA), dynamic mechanical analysis (DMA) and thermogravimetric analysis (TGA) were, are, and will be used in this transition from fossil feedstock to renewable ones, and in the development on new manufacturing processes such as those of additive manufacturing (AM). In this review, we report the state of the art of the last two years, as regards the use of thermal techniques in biopolymer design, polymer recycling, and the preparation of recyclable polymers as well as potential tools for biopolymer design in AM. For each study, we highlight how the most known thermal parameters, namely glass transition temperature (Tg), melting temperature (Tf), crystallization temperature (Tc) and percentage (%c), initial decomposition temperature (Ti), temperature at maximum mass loss rate (Tm), and tan δ, helped the researchers in understanding the characteristics of the investigated materials and the right way to the best design and preparation.

22

Wandji Djouonkep, Lesly Dasilva, Zhengzai Cheng, William Mawuko Kodjo Siegu, Xiong Jing, Jun Chen, Elvis Kwame Adom, Abubakar Muaz, and Mario Gauthier. "High performance sulfur-containing copolyesters from bio-sourced aromatic monomers." Express Polymer Letters 16, no. 1 (2022): 102–14. http://dx.doi.org/10.3144/expresspolymlett.2022.8.

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23

Kaoutari, Taoufiq, Hasna Louahlia, Pierre Schaetzel, Eric Lepinasse, Mohamed Boutouil, Steve Goodhew, and François Streif. "Hygric properties and adsorption characteristics of simple and dual coblayers of bio-sourced building materials." Construction and Building Materials 403 (November 2023): 133157. http://dx.doi.org/10.1016/j.conbuildmat.2023.133157.

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24

Girard, M., Y. Gaillard, A. Burr, E. Darque-Ceretti, and E. Felder. "Nanoindentation of bio-sourced adhesive 75% rosin/25% beeswax: Experimental results and modelisation." Mechanics of Materials 69, no. 1 (February 2014): 185–94. http://dx.doi.org/10.1016/j.mechmat.2013.10.005.

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25

Pavelek, Miloš, and Tereza Adamová. "Bio-Waste Thermal Insulation Panel for Sustainable Building Construction in Steady and Unsteady-State Conditions." Materials 12, no. 12 (June 22, 2019): 2004. http://dx.doi.org/10.3390/ma12122004.

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Apart from being used as an oil stock for bio-fuels production, an annual crop plant Brassica napus, thought to be an agro-waste, and used either as an animal feed, soil fertilizer or biomass for combustion and thermal energy production. Alternatively, as a bio-based and locally bio-sourced cellulosic material, it could be used as a thermal insulation in sustainable building fabrication, likewise woodchips, a bio-waste from the wood industry. In this study, the above-mentioned bio-waste materials’ thermal properties were identified using a sandwich panel from medium density fibreboard (MDF) and wood studs. Premanufactured panels have been filled in with randomly oriented short-cut rapeseed and with short-cut woodchips. A modified guarded hot box method was used to designate steady and un-steady state thermo-physical parameters of such insulation panels. The examined bio-waste materials absorbed thermal fluctuations of the exterior environment and kept the indoor building environment at constant temperature regardless of such fluctuations. The ability of bio-based sandwich panels to store heat energy was found to be similar to mineral wool. Additionally, VOC (volatile organic compound) emissions of tested materials were identified using gas chromatography-mass spectrometry (GC-MS) combined with headspace solid-phase microextraction (HS-SPME) to declare materials’ harmlessness to indoor environmental quality and human wellbeing. In conclusion, bio-based short-cut materials proved to be a viable environmentally friendly and energy efficient alternative to conventionally used thermal insulations.

26

Patil, Rupesh C., Shashikant A. Damate, Dnyandev N. Zambare, and Suresh S. Patil. "Chickpea leaf exudates: a green Brønsted acid type biosurfactant for bis(indole)methane and bis(pyrazolyl)methane synthesis." New Journal of Chemistry 45, no. 20 (2021): 9152–62. http://dx.doi.org/10.1039/d1nj00382h.

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A clean and highly efficient protocol for green synthesis of bis(indole)methanes and bis(pyrazolyl)methanes has been successfully achieved by using a naturally sourced bio-surfactant, chickpea leaf exudates (CLE), as a Brønsted acid-type catalyst.

27

Moreno, Adrian, Nabil Bensabeh, Jaan Parve, Juan C. Ronda, Virginia Cádiz, Marina Galià, Lauri Vares, Gerard Lligadas, and Virgil Percec. "SET-LRP of Bio- and Petroleum-Sourced Methacrylates in Aqueous Alcoholic Mixtures." Biomacromolecules 20, no. 4 (March 18, 2019): 1816–27. http://dx.doi.org/10.1021/acs.biomac.9b00257.

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28

Sallem-Idrissi, N., P. Van Velthem, and M. Sclavons. "Fully Bio-Sourced Nylon 11/Raw Lignin Composites: Thermal and Mechanical Performances." Journal of Polymers and the Environment 26, no. 12 (September 25, 2018): 4405–14. http://dx.doi.org/10.1007/s10924-018-1311-7.

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29

Di Mauro, Eduardo, Emilie Hebrard, Yasmina Boulahia, Marco Rolandi, and Clara Santato. "On the interfaces between organic bio-sourced materials and metals for sustainable electronics: the eumelanin case." Japanese Journal of Applied Physics 58, no. 5 (April 26, 2019): 051014. http://dx.doi.org/10.7567/1347-4065/ab1061.

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30

Pierau, Lucie, Christine Elian, Jun Akimoto, Yoshihiro Ito, Sylvain Caillol, and Davy-Louis Versace. "Bio-sourced monomers and cationic photopolymerization–The green combination towards eco-friendly and non-toxic materials." Progress in Polymer Science 127 (April 2022): 101517. http://dx.doi.org/10.1016/j.progpolymsci.2022.101517.

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31

Momeni, Sina, Muhammad Safder, Mohammad Abu Hasan Khondoker, and Anastasia Leila Elias. "Valorization of Hemp Hurds as Bio-Sourced Additives in PLA-Based Biocomposites." Polymers 13, no. 21 (November 1, 2021): 3786. http://dx.doi.org/10.3390/polym13213786.

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Sourced from agricultural waste, hemp hurds are a low-cost renewable material with high stiffness; however, despite their potential to be used as low-cost filler in natural fiber reinforced polymer biocomposites, they are often discarded. In this study, the potential to add value to hemp hurds by incorporating them into poly(lactic acid) (PLA) biopolymer to form bio-based materials for packaging applications is investigated. However, as with many plant fibers, the inherent hydrophilicity of hemp hurds leads to inferior filler-matrix interfacial interactions, compromising the mechanical properties of the resulting biocomposites. In this study, two chemical treatments, alkaline (NaOH) and alkaline/peroxide (NaOH/H2O2) were employed to treat hemp hurds to improve their miscibility with poly(lactic acid) (PLA) for the formation of biocomposites. The effects of reinforcement content (5, 10, and 15 wt. %), chemical treatments (purely alkaline vs. alkaline/peroxide) and treatment cycles (1 and 3 cycles) on the mechanical and thermal properties of the biocomposites were investigated. The biocomposites of treated hemp hurd powder exhibited enhanced thermal stability in the temperature range commonly used to process PLA (130–180 °C). The biocomposites containing 15 wt. % hemp hurd powder prepared using a single-cycle alkaline/peroxide treatment (PLA/15APHH1) exhibited a Young’s modulus of 2674 MPa, which is 70% higher than that of neat PLA and 9.3% higher than that of biocomposites comprised of PLA containing the same wt. % of untreated hemp hurd powder (PLA/15UHH). Furthermore, the tensile strength of the PLA/15APHH1 biocomposite was found to be 62.6 MPa, which was 6.5% lower than that of neat PLA and 23% higher than that of the PLA/15UHH sample. The results suggest that the fabricated PLA/hemp hurd powder biocomposites have great potential to be utilized in green and sustainable packaging applications.

32

Hoxha, Dashnor, Brahim Ismail, Ancuța Rotaru, David Izabel, and Thibaut Renaux. "Assessment of the Usability of Some Bio-Based Insulation Materials in Double-Skin Steel Envelopes." Sustainability 14, no. 17 (August 30, 2022): 10797. http://dx.doi.org/10.3390/su141710797.

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In this paper, a double-skin steel building-demonstrator, set up using panels of five bio-based insulators and a classical mineral insulating material, is studied. The panels used in the demonstrator are made from industrially manufactured and commercialized bio-materials. To assess the suitability of these panels for use in cold formed steel envelope buildings, their advantages and/or the drawbacks (if any) of the synchronized records of temperatures, relative humidity and thermal flux of each panel are obtained using a system of continuous measurements. Data from 6 months of records in the roof of the demonstrator are used to assess the infield properties of the panels and the seasonal evolution of these properties in relation to the presence of the vapor barrier. The thermal resistance of each panel is determined from these data using two methods: the ISO 9869-1:2014 based on the Heat Flow Meter (HFM) method and an inverse problem identification method. All bio-sourced panels manifest higher thermal resistance than the classical insulation system, whatever conditions of use with or without barrier vapor. The seasonal variations of thermal properties are attenuated when a vapor barrier is used. No risk for water condensation inside the bio-insulations is revealed so far.

33

Malucelli, Giulio. "Biomacromolecules and Bio-Sourced Products for the Design of Flame Retarded Fabrics: Current State of the Art and Future Perspectives." Molecules 24, no. 20 (October 20, 2019): 3774. http://dx.doi.org/10.3390/molecules24203774.

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The search for possible alternatives to traditional flame retardants (FRs) is pushing the academic and industrial communities towards the design of new products that exhibit low environmental impact and toxicity, notwithstanding high performances, when put in contact with a flame or exposed to an irradiative heat flux. In this context, in the last five to ten years, the suitability and effectiveness of some biomacromolecules and bio-sourced products with a specific chemical structure and composition as effective flame retardants for natural or synthetic textiles has been thoroughly explored at the lab-scale level. In particular, different proteins (such as whey proteins, caseins, and hydrophobins), nucleic acids and extracts from natural sources, even wastes and crops, have been selected and exploited for designing flame retardant finishing treatments for several fibers and fabrics. It was found that these biomacromolecules and bio-sourced products, which usually bear key elements (i.e., nitrogen, phosphorus, and sulphur) can be easily applied to textiles using standard impregnation/exhaustion methods or even the layer-by-layer technique; moreover, these “green” products are mostly responsible for the formation of a stable protective char (i.e., a carbonaceous residue), as a result of the exposure of the textile substrate to a heat flux or a flame. This review is aimed at summarizing the development and the recent progress concerning the utilization of biomacromolecules/bio-sourced products as effective flame retardants for different textile materials. Furthermore, the existing drawbacks and limitations of the proposed finishing approaches as well as some possible further advances will be considered.

34

Zhang, Dan. "Fire-Safe Biobased Composites: Enhancing the Applicability of Biocomposites with Improved Fire Performance." Fire 6, no. 6 (June 8, 2023): 229. http://dx.doi.org/10.3390/fire6060229.

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Research has recently transitioned from the study of fossil-based materials to bio-sourced ones, following the quest to achieve sustainability. However, fire presents a unique hazard to bio-composite materials, which limits their applicability in various sectors. This necessitates an in-depth assessment of the fire behaviour of biobased composites used for specific applications. Improving the fire properties of bio-composites with flame retardants tends to reduce mechanical strength. Therefore, this review focused on biobased composite materials for packaging, structural, automotive, and aeronautical applications that are both mechanically strong and fire safe. It was noticed that the interfacial bonding between the matrix and the reinforcement should be optimized. In addition, optimum amounts of flame retardants are required for better fire performance. This article covers flame retardants for biobased composites, the optimum amount required, and the extent of improvement to the thermal stability and flammability of the materials. This research will help material scientists and the like in their selection of biomass feedstock, flame retardants, and general materials for different types of applications.

35

Slaimia, Marouen, Naima Belayachi, and Dashnor Hoxha. "In Situ Performance Assessment of a Bio-Sourced Insulation Material from an Inverse Analysis of Measurements on a Demonstrator Building." Advanced Engineering Forum 21 (March 2017): 460–67. http://dx.doi.org/10.4028/www.scientific.net/aef.21.460.

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The purpose of this study is to evaluate the potential of bio-sourced material based on cereal straw for an efficient insulation. Decreasing significantly energy consumption of buildings requires not only the very best insulation material for heat loss reduction through the wall but also the reduction of air permeability which can affect automatically the comfort in the building. This is why, propose an insulation material with low thermal conductivity remains insufficient and the evaluation of the performance of the new insulation material in situ in real conditions is an essential step. The experimental building ( PROMETHE demonstrator) is set up with wood frame and multilayered walls composed with cinder blocks and insulation bio-composite based on cereal straw in order to simulate the thermal rehabilitation conditions according the External thermal insulation principle. Each façade is divided in four part with three different insulation bio-composites and naked part for comparison reasons. Hygrothermal sensors are used both inside and outside of the demonstrator, and heat-flux sensor is placed at the cinder blocks biocomposite interface. These in situ measurements are used to compare the efficiency of three bi-sourced materials and for the modeling the hygrothermal behavior of the multilayer wall by using the set of identified parameters in laboratory.

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Ben Hadj Tahar, Dhouha, Zakaria Triki, Mohamed Guendouz, Hichem Tahraoui, Meriem Zamouche, Mohammed Kebir, Jie Zhang, and Abdeltif Amrane. "Characterization and Thermal Evaluation of a Novel Bio-BasedNatural Insulation Material from Posidonia oceanica Waste: A Sustainable Solution for Building Insulation." ChemEngineering 8, no. 1 (February 2, 2024): 18. http://dx.doi.org/10.3390/chemengineering8010018.

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Natural bio-based insulation materials have been the most interesting products for good performance and low carbon emissions, becoming widely recognized for their sustainability in the context of climate change and the environmental impact of the building industry. The main objective of this study is to characterize a new bio-sourced insulation material composed of fibers and an adhesive based on cornstarch. This innovative material is developed from waste of the marine plant called Posidonia oceanica (PO), abundantly found along the Algerian coastline. The research aims to valorize this PO waste by using it as raw material to create this novel material. Four samples with different volumetric adhesive fractions (15%, 20%, 25%, and 30%) were prepared and tested. The collected fractions underwent a series of characterizations to evaluate their properties. The key characteristics studied include density, thermal conductivity, and specific heat. The results obtained for the thermal conductivity of the different composites range between 0.052 and 0.067 W.m−1.K−1. In addition, the findings for thermal diffusivity and specific heat are similar to those reported in the scientific literature. However, the capillary absorption of the material is slightly lower, which indicates that the developed bio-sourced material exhibits interesting thermal performance, justifying its suitability for use in building insulation in Algeria.

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Samouh, Z., A. Abed, C. Cochrane, A. R. Labanieh, F. Boussu, D. Soulat, R. El-Mozznine, and O. Cherkaoui. "Investigation on bio-sourced textile reinforcement for composite material based on sisal Moroccan yarns." IOP Conference Series: Materials Science and Engineering 1266, no. 1 (January 1, 2023): 012013. http://dx.doi.org/10.1088/1757-899x/1266/1/012013.

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Abstract The main objective of this paper aims at investigating the potential use of sisal yarn into composite material despite the inherent variability of properties of natural resources. A multi-scale approach of the behavior of sisal fiber woven reinforcements is conducted to understand and evaluate the different properties of woven reinforcements. At the yarn scale, a piezo-resistive sensor yarn was developed to assess deformations and stress concentrations in-situ in order to understand the material behavior during the weaving of woven reinforcements fibrous for bio-sourced composite materials. At the fabric scale, 2D woven reinforcements are developed based on a conventional weaving process. The production and characterization of composite sheets based on 2D woven reinforcements show the potential of sisal fiber woven reinforcements compared to natural fiber woven reinforcements from literature.

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Kumar, Subodh, and Xuan Thang Cao. "Natural bio-sourced polymers: Emerging precursors for the synthesis of single atom catalysts." Coordination Chemistry Reviews 499 (January 2024): 215524. http://dx.doi.org/10.1016/j.ccr.2023.215524.

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Ghorbel, Elhem, Mariem Limaiem, and George Wardeh. "Mechanical Performance of Bio-Based FRP-Confined Recycled Aggregate Concrete under Uniaxial Compression." Materials 14, no. 7 (April 3, 2021): 1778. http://dx.doi.org/10.3390/ma14071778.

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This research investigates the effectiveness of bio-sourced flax fiber-reinforced polymer in comparison with a traditional system based on carbon fiber-reinforced epoxy polymer in order to confine recycled aggregate concretes. The experimental investigation was conducted on two series of concrete including three mixtures with 30%, 50%, and 100% of recycled aggregates and a reference concrete made with natural aggregates. The concrete mixtures were intended for a frost environment where an air-entraining agent was added to the mixture of the second series to achieve 4% air content. The first part of the present work is experimental and aimed to characterize the compressive performance of confined materials. The results indicated that bio-sourced composites are efficient in strengthening recycled aggregates concrete, especially the air-entrained one. It was also found that the compressive strength and the strain enhancement obtained from FRP confinement are little affected by the replacement ratio. The second part was dedicated to the analytical modeling of mechanical properties and stress–strain curves under compression. With the most adequate ultimate strength and strain prediction relationships, the full behavior of FRP-confined concrete can be predicted using the model developed by Ghorbel et al. to account for the presence of recycled aggregates in concrete mixtures.

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Aparicio, Francisca, Martín Mizrahi, José M. Ramallo-López, Enzo Laurenti, Giuliana Magnacca, Luciano Carlos, and Daniel O. Mártire. "Novel bimetallic magnetic nanocomposites obtained from waste-sourced bio-based substances as sustainable photocatalysts." Materials Research Bulletin 152 (August 2022): 111846. http://dx.doi.org/10.1016/j.materresbull.2022.111846.

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Nwankwo, Constance Obituo, and Nkemakonam Chidiebube Igbokwe. "Development of a Locally Sourced Miniature Facility Capable of Transforming Bio-Waste into Renewable Energy." International Journal of Latest Technology in Engineering, Management & Applied Science XII, no. IX (2023): 56–65. http://dx.doi.org/10.51583/ijltemas.2023.12906.

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The primary challenge facing the globe today is finding environmentally friendly, ecologically balanced ways to use bio-waste as a source of energy. Typically, the term “biogas” or “renewable energy” refers to a gas created when organic matter breaks down without oxygen. Thus, this study designed and developed a 200L miniature facility capable of transforming bio-waste into renewable energy using locally available materials and tested under the existing weather condition in Awka, Anambra State. The facility developed in this study was utilized to decompose cow manure anaerobically, producing 21.9L of cooking gas overall over the course of a 35-day retention period. Additionally, the water boiling test demonstrated that the purified cooking gas’ high methane gas content development of the digesting chamber using high-density polyethylene plastic (HDPE) allows a reduction in the overall cost of setting up a small-scale plant.

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Zoure, Abraham Nathan, and Paolo Vincenzo Genovese. "Comparative Study of the Impact of Bio-Sourced and Recycled Insulation Materials on Energy Efficiency in Office Buildings in Burkina Faso." Sustainability 15, no. 2 (January 12, 2023): 1466. http://dx.doi.org/10.3390/su15021466.

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This research presents a comparative study of different bio-sourced and recycled insulation materials and their impact on energy consumption of office buildings located in Ouagadougou, a city with a dry hot climate. A thorough assessment of the country’s meteorological and urban development data from 2004 to 2018 was conducted for climatic data. EnergyPlus was used for thermal comfort based on the American Society of Heating, Refrigerating, and Air-conditioning Engineers Standard (ASHRAE) 55 adaptive comfort model and energy analysis by calculating and comparing the yearly energy consumption, heat transfer through the building envelope, and discomfort degree hours. A four-story “H”-shaped office building made of cement blocks with a fixed north–south orientation and a 30% window-to-wall ratio served as the base case for this study to perform two rounds of multiple simulations and evaluate the most effective insulation material. First, exterior walls were insulated, and then the roof and inner floors were insulated using the best material from the first round. The findings confirmed hemp wool as the best performing bio-sourced insulation material, which reduces by 25.8% and 17.7% the annual cooling energy demand at 114,495 kWh and the annual energy consumption at 203,598 kWh, respectively, contributing to saving up to 43,852 kWh in annual energy consumption. Hemp wool impacted wall, roof, and internal floor heat transfer by reducing them by 90.86% at 12,583 kWh, 85.1% at 6666 kWh, and 88.1% at −2664 kWh, respectively, while the discomfort degree hours were reduced by 17.6% at 9720.12. The outcomes provide patterns, explanations, and inferences that may be generalized to other projects in Burkina Faso, especially, and sub-Saharan African countries, in general, where most buildings are not well insulated. The availability of these bio-based and recycled insulation materials may also serve as proof to foster a circular economy in the Burkina Faso construction industry.

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Namphonsane, Atitiya, Taweechai Amornsakchai, Chin Hua Chia, Kheng Lim Goh, Sombat Thanawan, Rungtiwa Wongsagonsup, and Siwaporn Meejoo Smith. "Development of Biodegradable Rigid Foams from Pineapple Field Waste." Polymers 15, no. 13 (June 29, 2023): 2895. http://dx.doi.org/10.3390/polym15132895.

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Pineapple materials sourced from agricultural waste have been employed to process novel bio-degradable rigid composite foams. The matrix for the foam consisted of starch extracted from pineapple stem, known for its high amylose content, while the filler comprised non-fibrous cellulosic materials sourced from pineapple leaf. In contrast to traditional methods that involve preparing a batter, this study adopted a unique approach where the starch gel containing glycerol were first formed using a household microwave oven, followed by blending the filler into the gel using a two-roll mill. The resulting mixture was then foamed at 160 °C using a compression molding machine. The foams displayed densities ranging from 0.43–0.51 g/cm3 and exhibited a highly amorphous structure. Notably, the foams demonstrated an equilibrium moisture content of approximately 8–10% and the ability to absorb 150–200% of their own weight without disintegration. Flexural strengths ranged from 1.5–4.5 MPa, varying with the filler and glycerol contents. Biodegradability tests using a soil burial method revealed complete disintegration of the foam into particles measuring 1 mm or smaller within 15 days. Moreover, to showcase practical applications, an environmentally friendly single-use foam tray was fabricated. This novel method, involving gel formation followed by filler blending, sets it apart from previous works. The findings highlight the potential of pineapple waste materials for producing sustainable bio-degradable foams with desirable properties and contribute to the field of sustainable materials.

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Affan, Houssam, Wahib Arairo, and Jack Arayro. "Mechanical and thermal characterization of bio-sourced mortars made from agricultural and industrial by-products." Case Studies in Construction Materials 18 (July 2023): e01939. http://dx.doi.org/10.1016/j.cscm.2023.e01939.

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Duquet, Fanny, Amr Ahmed Nada, Matthieu Rivallin, Florence Rouessac, Christina Villeneuve-Faure, and Stéphanie Roualdes. "Influence of Bio-Based Surfactants on TiO2 Thin Films as Photoanodes for Electro-Photocatalysis." Catalysts 11, no. 10 (October 12, 2021): 1228. http://dx.doi.org/10.3390/catal11101228.

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Photocatalytic water splitting into hydrogen is considered as one of the key solutions to the current demand for eco-responsible energy. To improve the efficiency and sustainability of this process, the development of a TiO2-based photoanode by adding bio-sourced surfactants to the sol–gel preparation method has been considered. Three different polymeric biosurfactants (GB, GC, and BIO) have been tested, giving rise to three different materials being structurally and morphologically characterized by XRD, Rietveld refinement, BET, SEM, AFM, and XPS, which was completed by light absorption, photocatalytic (Pilkington test), electronic (EIS and C-AFM), and photoelectrochemical (cyclic voltammetry) measurements. Correlations between the structure/morphology of materials and their functional properties have been established. One specific surfactant has been proven as the most suitable to lead to materials with optimized photoelectrochemical performance in direct relation with their photocatalytic properties essentially controlled by their specific surface area.

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Hinostroza Ramos, Jessica, Lydie Ploux, Karine Anselme, Lavinia Balan, and Angélique Simon-Masseron. "Hydrothermal Synthesis and Characterization of Bio-Sourced Macroporous Zinc Phosphates Prepared with Casein Protein." Crystal Growth & Design 16, no. 9 (August 25, 2016): 4897–904. http://dx.doi.org/10.1021/acs.cgd.6b00454.

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Tara, Ahmed, Mouhja Bencharki, Angélique Gainvors-Claisse, Françoise Berzin, Omar Jbara, and Sébastien Rondot. "Investigating Degradation in Extrusion-Processed Bio-Based Composites Enhanced with Clay Nanofillers." Biomass 4, no. 3 (July 1, 2024): 658–70. http://dx.doi.org/10.3390/biomass4030036.

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This research investigates the extrusion-based fabrication and characterization of nanocomposites derived from bio-sourced polypropylene (PP) and poly(butylene succinate) (PBS: a biodegradable polymer derived from renewable biomass sources such as corn or sugarcane), incorporating Cloisite 20 (C20) clay nanofillers, with a specific focus on their suitability for electrical insulation applications. The research includes biodegradation tests employing the fungus Phanerochaete chrysosporium to evaluate the impact of composition and extrusion conditions. These tests yield satisfactory results, revealing a progressive disappearance of the PBS phase, as corroborated by scanning electron microscopy (SEM) observations and a reduction in the intensity of Fourier transform infrared spectroscopy (FTIR) peaks associated with C-OH and C-O-C bonds in PBS. Despite positive effects on various properties (i.e., barrier, thermal, electrical, and mechanical properties, etc.), a high clay content (5 wt%) does not seem to enhance biodegradability significantly, highlighting the specific sensitivity of the PBS phase to the addition of clay during this process. This study provides valuable insights into the complex interplay of factors conditioning nanocomposite biodegradation processes and highlights the need for an integrated approach to understanding these processes. This is the first time that research has focused on studying the degradation of nanocomposites for electrical insulation, utilizing partially bio-sourced materials that contain PBS.

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Ahuja, Arihant, and Vibhore Kumar Rastogi. "Shellac: From Isolation to Modification and Its Untapped Potential in the Packaging Application." Sustainability 15, no. 4 (February 8, 2023): 3110. http://dx.doi.org/10.3390/su15043110.

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Recently, terms such as sustainable, bio-based, biodegradable, non-toxic, or environment-benign are being found in the literature, suggesting an increase in green materials for various applications in the future, particularly in the packaging application. The unavoidable shift from conventional polymers to green materials is difficult, as most bio-sourced materials are not water-resistant. Nonetheless, Shellac, a water-resistant resin secreted by a lac insect, used as a varnish coat, has been underutilized for packaging applications. Here, we review Shellac’s potential in the packaging application to replace conventional polymers and biopolymers. We also discuss Shellac’s isolation, starting from the lac insect and its conversion to Sticklac, Seedlac, and Shellac. Further, the chemistry of shellac resin, the chemical structure, and its properties are examined in detail. One disadvantage of Shellac is that it becomes stiff over time. To enable the usage of Shellac for an extended time in the packaging application, a modification of Shellac via physical and chemical means is conferred. Furthermore, the usage of Shellac in other polymer matrices and its effect are reviewed. Lastly, the non-toxic and biodegradable nature of Shellac and its potential in packaging are explored by comparing it with traditional crude-based polymers and conventional bio-based materials.

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Raj, Ashish, Bruno Grignard, Christophe Detrembleur, and Jean-François Gohy. "Synthesis of Polyhydroxy Urethane Network Based Solid Polymer Electrolytes from Bio-Sourced Carbonates and Amines." ECS Meeting Abstracts MA2023-02, no. 2 (December 22, 2023): 371. http://dx.doi.org/10.1149/ma2023-022371mtgabs.

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Climate change is a harsh but ultimate reality, impacting every corner of the globe. This stresses the strong emphasis on the need for clean renewable energy with safe storage technology, particularly batteries. Solid-state batteries are of great interest owing to their higher energy density, flexibility and safety than the existing lithium-ion batteries technology. While there is constantly increasing research on polyethylene oxide (PEO) based polymers, we aim at PEO alternatives that are sustainable and environmentally friendly. In our project, we demonstrate a bio-derived solid polymer electrolyte based on functionalized carbonated soybean oil (CSBO) monomer for the synthesis of polyhydroxy urethanes (PHUs) network. This class of materials shows remarkable adhesive properties on the surface of lithium speculating better interfacial contact and stability. All these polymers reinforced with LITFSI were characterized following standard electrochemical measurements exhibiting decent ionic conductivity (>10-2 mS cm-1 ), electrochemical stability window (> 4 V vs Li/Li+ ) and transport properties allowing them to be explored for commercial cathodes like LiFePO4. We hope to provide a promising direction for developing bio-derived solid electrolytes to facilitate progress in a sustainability, cost-effective and safe manner towards solid-state lithium batteries for global utilization.

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Guo, Yuliang. "The application of renewable materials in green chemistry." Applied and Computational Engineering 63, no. 1 (May 9, 2024): 117–21. http://dx.doi.org/10.54254/2755-2721/63/20241004.

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Natural substances that are capable of being replaced or renewed over the course of a human lifetime or over a relatively short amount of time through natural processes are referred to as material that is renewable. Due to the fact that these materials are both sustainable and favorable to the environment, they are frequently used in a variety of industries, including the building industry, the textile industry, the energy industry, and the packaging industry. Given the circumstances, it is quite probable that this will have a profound effect on the future of humanity. Renewable materials commonly encompass biomass, bio-based polymers, natural fibers, wood, and lumber. The main focus of the study is to explore the utilization of renewable materials in green chemistry, namely biomass-sourced renewable materials, as well as other renewable materials such as food waste, recyclable plastics, and paper. This paper provides an in-depth review of the advantages and challenges related to renewable materials in the realm of green chemistry.